Robin Locksley.
Student, robot -afficionado, savvy techie. Sufficiently mild-mannered, but with a streak of defiance incongruous with his rather wiry build. The keyboard (and a bit of flair) is mightier than than the sword.

Marion Fitzrichard.
The heart of a lion, with all the good and bad that entails. Impulsive, stubborn, and with a tendency to deal in absolutes. Her not-quite-so-savvy tech skills she makes up for with extensive reading.

Brian Tuck.
Easy-going and usually sporting a serene smile. Has a tendency to talk exclusively in proverbs, intermingled with famous quotes and occasionally mathematical axioms. A transfer student from the great beyond.